It works similarly to the file HTML input, but browses files or folders stored on the server, and it's mainly used to browse image gallery folders.
I need some ideas on how to design the UI for it, before coding it. This is what I came up with so far:
Clicking on the
↑ arrow would go up one level (parent directory), and clicking on any directory name would open that directory. The "select" button makes the selection and closes the input, and it's only visible on mouse over.
Another option is a thumbnail list like in Windows Explorer: click opens, double-click selects, maybe with another select button below the list because dbl-click is not so obvious.
I want it to be easy for the end-user to understand how to use the input, and allow him to make a selection with as few clicks as possible. I'm not that much into user experience, so any suggestions are welcome :)